【英文标准名称】:Fibreopticcommunicationsubsystemtestprocedures-Part2-10:Digitalsystems;Time-resolvedchirpandalpha-factormeasurementoflasertransmitters
【原文标准名称】:纤维光学通信子系统试验程序.第2-10部分:数字系统.激光发射机的时间分辨线性调频脉冲和α因数测量
【标准号】:IEC/PAS61280-2-10-2003
【标准状态】:作废
【国别】:国际
【发布日期】:2003-01
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/SC86C
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;测量;激光设备;波长;光波导;数字信号;颜色色散;电气工程;光学;纤维光学;试验
【英文主题词】:fibreoptics;digitalsignals;optics;chromaticdispersion;definition;opticalwaveguides;electricalengineering;definitions;testing;wavelengths;laserequipment;measurement
【摘要】:
【中国标准分类号】:M33
【国际标准分类号】:33_180_01
【页数】:20P;A4
【正文语种】:英语


【英文标准名称】:Rollingbearings-Dynamicloadratingsandratinglife(ISO281:2007)
【原文标准名称】:滚动轴承.额定动载荷和额定寿命(ISO281-2007)
【标准号】:DINISO281-2009
【标准状态】:作废
【国别】:德国
【发布日期】:2009-01
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:轴向止推轴承;滚珠轴承;轴承;定义;动力荷载;寿命;荷载能力;额定负荷;负荷;数学计算;计算方法;径向轴承;额定值;滚柱轴承;滚动轴承;符号;止推轴承
【英文主题词】:Axial-thrustbearings;Ballbearings;Bearings;Definitions;Dynamicloading;Life(durability);Loadcapacity;Loadratings;Loading;Mathematicalcalculations;Methodsofcalculation;Radialbearings;Ratings;Rollerbearings;Rollingbearings;Symbols;Thrustbearings
【摘要】:ThisInternationalStandardspecifiesmethodsofcalculatingthebasicdynamicloadratingofrollingbearingswithinthesizerangesshownintherelevantISOpublications,manufacturedfromcontemporary,commonlyused,highqualityhardenedbearingsteel,inaccordancewithgoodmanufacturingpracticeandbasicallyofconventionaldesignasregardstheshapeofrollingcontactsurfaces.Thisdocumentalsospecifiesmethodsofcalculatingthebasicratinglife,whichisthelifeassociatedwith90%reliability,withcommonlyusedhighqualitymaterial,goodmanufacturingqualityandwithconventionaloperatingconditions.Inaddition,itspecifiesmethodsofcalculatingthemodifiedratinglife,inwhichvariousreliabilities,lubricationcondition,contaminatedlubricantandfatigueloadofthebearingaretakenintoaccount.ThisInternationalStandarddoesnotcovertheinfluenceofwear,corrosionandelectricalerosiononbearinglife.Thisdocumentisnotapplicabletodesignswheretherollingelementsoperatedirectlyonashaftorhousingsurface,unlessthatsurfaceisequivalentinallrespectstothebearingring(orwasher)racewayitreplaces.Double-rowradialbearingsanddouble-directionthrustbearingsare,whenreferredtointhisdocument,presumedtobesymmetrical.Furtherlimitationsconcerningparticulartypesofbearingsareincludedintherelevantclauses.
【中国标准分类号】:J11
【国际标准分类号】:21_100_20
【页数】:55P.;A4
【正文语种】:德语